I noticed this topic was still empty, so I figured I'd post one of my favorite apps so far.

I'm a fairly big fan of the Tubecast app in the Windows store. It's by far the best YouTube app available in my opinion. The layout is much better than any other YouTube app I've seen thus far. I'm also really enjoying the functions and features it has. The free version can cast a maximum of 20 casts to other devices [such as XBox 1, PS4, Smart TV, etc.]. The paid version [called Tubecast Pro] has an unlimited amount of casts. Although I personally never use the casts it is still much better than any other YouTube app I've ever seen.

I also enjoy the ability to pre-load videos through it to make them run easier if preferred. All-in-all, if anyone wants a good YouTube app, then I would definitely suggest Tubecast. It is by far one of the best YouTube apps available on the Windows Store.